Method of making paper bags.



A, L. PARRISH. METHOD DF MAKING PAPER BAG-S.

APPLICATION FILED MAY 24, 1809.

MU QM cameo,

ASA, I1. PARRISH, OF ELKHAR-T, INDIANA; v

To all whom it mo concern:

Beit known that I, Asa L. Panmsn. of

of my improvements are to perform opera-.

tions upon the tubing from which the bags are made, that will assist in opening out the end of a bellows tucked tube into the well known diamond form, thereby enabling me to make bags with a machine which requires less mechanism in its diamond forming section than other machines of this class.

In the accompanying drawings, Figure 1 is a length of bellows tucked tubing showing some of the operations which are performed upon it. Fig. 2 is a continuation of Fig. 1, showing further operations. Fig. 3 is a bag section with the bottom spread into the diamond form. Figs. 4, 5, and 6, show further operations toward completing the bag. Fig. 7, shows the bag bottom being spread into the diamond form.

Similar figures refer to throughout the several views.

Referring to Fig. l, 2 is the well known thumbhole tip which may be formed in the paper by any well known cutting means, and at distances apart corresponding to the length required for bag tubes, and the tip similar parts METHOD or axine PAPERBAGS.

Specification of Letters Patent.

Application filed-May 24, 1909.

is to and the stages, '0

l l l l l l i 2 is compelled to stand at an angle with the tubing for reasons later explained.

3, 3, 3', 3, are creases made in the tucked tubing, and extend from the outer edges of the tubing toward the center a distance which is substantially the depth of the side tucks. It will be seen that these creases 3, 3, 3, 3, are all made toward the inside of the tube which shows the creases in opposition to each other. As shown in Fig. 1, the under side of the tube and the bottom half of the bellows tuck are creased upward, and the upper side of the tube and the upper half of the bellows tuck are creased downward. The creases 3, 3, 3, 3, are made in the tubing at the proper position for the corners 4, 4t. 4, 4, of the bag bottom to be formed, and also the side folds of the bottom 5, 5.

In the operation of opening out a tucked tube and spreading a diamond form on the end of it, it is well known how difficult it the side tucks of the tubing a1 ea anaiieaii;tea Serial No. 497,999. 1 1 Y I I f the diamond in an inwa rd direction, an d" complicated ian'd expensive operative mechanism isnece'ssziry.

111 most bag 'i'nachin es to overcome the ditfi culty. It will be seen" (l ig':' TQ- t-h-at when e sp'rea'd apart, in the operation of 'forming' -t'hediamond,

the creases 3, 3, 3, 3,-'wijll become;straight creases on lines 5, 5, and when the side tucks are spread apart on lines 5, 5, the creases 3, 3, 3,3, assume the position of having been creased from the inside of the tube, and. consequently the sides 6, 6, of the diamond are inclined inwardly and will fold into the desired diamond form very readily, and without the use of much mechanism.

The tube lengths are cut as shownv at 7. 7, (either rough or smooth edged) on a line back of the forward line of the thumbhole tip thereby leaving athumb hole 8, at. the open end of the bag. The tip 2, extending across the cutting line is creased or bent in any convenient manner, substantially on line 9, 9, compelling it to stand at an angle with the tube, and placing it in a position back and clear of the cutting blade. The tube is cut through all of the p'lies leaving in the c' *ter of the under sheet a narrow uncut connection 10, between the tube lengths. After the cutting has been done the end ofthe tube islopened out into the diamond form, the preceding bag tube drawing on the front end of the oncoming blank, and assisting in making the diamond form of the bag bottom. During the time that the diamond fold is being formed the upper side of the tube is bent over the edge of a blade on line 12, 12. The diamond form is then pressed and paste 13, is applied in any well known manner. The uncut connection 10, is then severed, and the well known final folds 14: and 15 are made, by which the bag bottom is closed.

Having described my invention. what I claim and desire to secure by Letters latent is'- 1. The herein described improvement in the method of making paper bags, comprising forming bellows tucked tubing from a sheet of paper, forming the creases 3, 3, 3, 3, in the opposite faces of the tubing and its tucks in opposite directions toward each other, cutting the tubing and forming the diamond fold and-final folds of the bag bottom and completing the bag.

the uncut connection 10 with' rans rannr nice. v

v 5 or after it is ormed mto tubing, compelone side of the tubing, spreading the end of the tubing into the diamond form, defining the line 12, 12, when the diamond is being spread, flattening the diamond and applying paste, severing thenarrow uncut 15 connection1'1 0, and forming the final folds 14 and 1.5.

In testimony whereof I have, signed my name to this specification in the presence of two subscribing witnesses.

' ASA 'PARRISH."

The herein described method of making paper bags, consisting of forming a sheet oftgaper into bellows tucked tubing, cutting a.,. umbhole ti in the paper either before ling the tip 2, to stand at an angle with the tubing, creasing vthetucked tubing at Positions where the corners of the bag bottom are to be formed from both'edges toward the 10 nter a. distance substantially the defpth oi the bellows tucks, the creases being I in the'opposite' sldes of the tubing and its tucks in a direction toward the inside of the 1 Witnesses: tubing, cutting the tubing-through all of its JAMES S. HARMAIN', 15 plies eaving a. narrow uncut'connection in 1 EARL C. Bron; 

